Tube Extraction Device With Adjustable Pressure Mechanism

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Solution Overview

Problem

Existing tube dispensers struggle with extracting substances, especially high viscosity substances, and often result in waste due to inefficiency in dispensing the last amounts from tubes.

Innovation Solution

A tube dispenser comprising a base member, an upper plate hingedly secured to the base, a lever with a cam portion, and an adjustment rod with a constrictor that can be advanced to compress the upper plate against the base, allowing for adjustable pressure to be applied to dispense substances effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual squeezing is used to dispense substance from tube, then operation is simple, but dispensing efficiency is low and high viscosity substances cannot be extracted

Engineering Contradiction:
Improvedispensing efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical squeezing with a mechanical press system comprising a base member, upper plate, and lever mechanism. This substitution enables efficient extraction of high viscosity substances while maintaining operational simplicity through the lever's mechanical advantage.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces adjustable pressure parameters through the lever mechanism and fixed pressure option, allowing optimization of dispensing force for different substance viscosities. This parameter adjustment resolves the contradiction by enabling high pressure for viscous materials when needed, while maintaining simplicity for less viscous materials.

Inventive Principle:
Principle #35Parameter changes

2Quantity of substance

If high pressure is applied to extract last portions from tube, then complete dispensing is achieved, but tube may burst or leak

Engineering Contradiction:
Improvecomplete dispensingVSAvoidtube burst or leak
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent provides dynamic pressure control through the lever mechanism, allowing the operator to apply increasing pressure gradually. The system transitions from gentle pressure for initial dispensing to higher pressure for extracting remaining portions, optimizing the quantity extracted while preventing tube damage through controlled pressure progression.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent offers two pressure modes: fixed pressure for normal dispensing and lever-applied pressure for complete extraction. The operator selects the appropriate pressure level based on the remaining substance quantity, applying excessive pressure only when necessary to extract the last portions without causing tube damage.

Inventive Principle:
Principle #16Partial or excessive action

3Adaptability or versatility

If fixed pressure is used for dispensing, then device structure is simple, but cannot handle high viscosity substances

Engineering Contradiction:
Improveadaptability to different viscositiesVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a universal device that handles both low viscosity substances (using fixed pressure) and high viscosity substances (using lever-applied pressure) with a single structure. The lever mechanism serves multiple functions: as a pressure amplifier for viscous materials, as a pressure regulator, and as a mechanical advantage device, providing adaptability without significant complexity increase.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device efficiently extracts substances from tubes, including high viscosity ones, by providing adjustable pressure options, minimizing waste and ensuring complete dispensing of contents.

Implementation Method 1

As the constrictor advances, it constricts the upper plate against the base member, thus dispensing the substance stored within any tube positioned between the upper plate and base member

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 2

If further pressure is needed, the lever may be pressed down to apply pressure from the cam portion directly onto the upper plate

Methodology Applied
Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS8763858B1Tube extraction device
Publication Date: 2014.07.01 MOUSER JR GILBERT WARREN
  • US8763858B1 patent drawing
  • US8763858B1 patent drawing
  • US8763858B1 patent drawing

AI summary

A tube extraction device for squeezing a substance out of a tube. The tube extraction device includes a base member and an upper plate hingedly secured to the base member. A lever including a handle portion and a cam portion is pivotally secured directly above the upper plate such that the cam portion rests thereon. An adjustment rod with an adjustably-secured constrictor is positioned below the base member. A knob at the end of the rod is used to advance the constrictor forward along the rod. As the constrictor advances, the upper plate constricts against the base member, thus dispensing the substance stored within any tube positioned between the upper plate and base member. If further pressure is needed, the lever may be pressed down to apply pressure from the cam portion directly onto the upper plate. A pressure knob may also be included for even more pressure capability.